CLUTCH 11mm Ascending & Descending

from CMC PRO https://www.cmcpro.com/11mm-clutch-ascending-descending/

From https://catherinelee4.blogspot.com/2020/09/clutch-11mm-ascending-descending.html

source https://catherinelee4.wordpress.com/2020/09/14/clutch-11mm-ascending-descending/